HAEFELY Test AG (Switzerland): EMC test and measurement systems (Burst, ESD etc.)
Teledyne Cougar Inc. (USA):  designs and manufactures RF and microwave components for signal processing equipment operating in the 100 kHz to 20 GHz range. Cougar's newest products include VCO's, frequency mixers, theshold and analog detectors. All products are available in many package configurations including TO-8, TO-8B, surface mount, flatpack, and SMA connectorized packages.millimeter-wave components and modules
octoScope (USA): Over the Air Testing solutions (OTA) in compact anechoic RF test station
Elva-1 (RU): millimeter-wave components and modules
Filter Technology (China): filter modules, diplexer, wave-guide filters and diplexers. Product catalog! Download here! 

CREE, INC. (USA): transistors in GaN-Gallium Nitride (HEMTs) and SiC-Silicon Carbide (MESFETs) for wide bandgap applications.
General purpose, C-band, 3G, LTE and WiMAX versions available.
http://www.cree.com/products/wireless.asp


Innovative Power Products (USA): RF Passive Components: surface mount resistors, terminators (loads), 90 degree hybrid couplers,
directional couplers and combiners.
http://www.innovativepp.com/
                                                              Product Catalog! Download here!


                                                                          
Brightek (Europe) Limited (UK/China): LED Lamp, SMD LED, High Power LED, Module/Light Source, Super Flux LED, IR/UV/Others and Thermal Management. 
www.brightekeurope.com/productcart/pc/viewcontent.asp

Laplace Instruments (UK): Laplace is a leading supplier of  emissions measuring equipment, immunity test equipmentand harmonics and flicker analysers.
http://www.laplace.co.uk/new.htm



AtlanTecRF (UK): RF components (passive & control), oscillators, noise generators, satellite communication equipment, sub-assemblies and active
components.
http://www.atlanticmicrowave.co.uk/index.htm



IMS Resistor – International Manufacturing Services, Inc.  (USA): providing both thick and thin film electronic components
including: Resistors - Terminations - Attenuators - Resistive Splitters - Planar Dividers - Planar Filters -
Resistive Couplers and Thermal Management Devices.
http://www.ims-resistors.com/
                                                               Product Catalog! Download here!



AARONIA AG (DE): Handheld Spectrum Analyzer, EMC & Pre-Compliance Antennas, USB Analysers, Near Field Probes and  EMF Shieldings
http://www.aaronia.com/



EMCORE (USA): fiber optics, CATV and FTTx solutions and transceivers.

http://www.emcore.com/fiber_optics